Depends; in the EU and selected countries that setting was always opt-in (i.e. it was never enabled for you). Elsewhere I guess the user has to periodically check their settings, or privacy policies, etc, which in practice sounds impossible.
> Important: By default, smart feature settings are off if you live in: The European Economic Area, Japan, Switzerland, United Kingdom
> Important: By default, smart feature settings are off if you live in: The European Economic Area, Japan, Switzerland, United Kingdom
(same source as in grandparent comment).